
    window.onload = async () => {
    const env = {
        serviceUrl: "https://vjmap.com/server/api/v1",
        accessToken: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJJRCI6MiwiVXNlcm5hbWUiOiJhZG1pbjEiLCJOaWNrTmFtZSI6ImFkbWluMSIsIkF1dGhvcml0eUlkIjoiYWRtaW4iLCJCdWZmZXJUaW1lIjo4NjQwMCwiZXhwIjo0ODEzMjY3NjM3LCJpc3MiOiJ2am1hcCIsIm5iZiI6MTY1OTY2NjYzN30.cDXCH2ElTzU2sQU36SNHWoTYTAc4wEkVIXmBAIzWh6M",
        exampleMapId: "sys_zp",
        assetsPath: "../../assets/",
        ...__env__ // 如果您已私有化部署，需要连接已部署的服务器地址和token，请打开js/env.js,修改里面的参数
    };
    try {
        // 在线效果查看地址: https://vjmap.com/map3d/demo/#/demo/map/threejs/224css3dPeriodictable
        // --css3d_periodictable--
        // 下面代码参考threejs官方示例改写 https://threejs.org/examples/#css3d_periodictable
        let svc = new vjmap3d.Service(env.serviceUrl, env.accessToken);
        let app = new vjmap3d.App(svc, {
            container: "map", // 容器id
            scene: {
                defaultLights: false
            },
            camera: {
                fov: 40,
                near: 1,
                far: 10000,
                position: [0, 0, 3000]
            }
        })
        let scene = app.scene, camera = app.camera, renderer = app.renderer;
        
        
        
        let renderercss3d
        const table = [
            'H', 'Hydrogen', '1.00794', 1, 1,
            'He', 'Helium', '4.002602', 18, 1,
            'Li', 'Lithium', '6.941', 1, 2,
            'Be', 'Beryllium', '9.012182', 2, 2,
            'B', 'Boron', '10.811', 13, 2,
            'C', 'Carbon', '12.0107', 14, 2,
            'N', 'Nitrogen', '14.0067', 15, 2,
            'O', 'Oxygen', '15.9994', 16, 2,
            'F', 'Fluorine', '18.9984032', 17, 2,
            'Ne', 'Neon', '20.1797', 18, 2,
            'Na', 'Sodium', '22.98976...', 1, 3,
            'Mg', 'Magnesium', '24.305', 2, 3,
            'Al', 'Aluminium', '26.9815386', 13, 3,
            'Si', 'Silicon', '28.0855', 14, 3,
            'P', 'Phosphorus', '30.973762', 15, 3,
            'S', 'Sulfur', '32.065', 16, 3,
            'Cl', 'Chlorine', '35.453', 17, 3,
            'Ar', 'Argon', '39.948', 18, 3,
            'K', 'Potassium', '39.948', 1, 4,
            'Ca', 'Calcium', '40.078', 2, 4,
            'Sc', 'Scandium', '44.955912', 3, 4,
            'Ti', 'Titanium', '47.867', 4, 4,
            'V', 'Vanadium', '50.9415', 5, 4,
            'Cr', 'Chromium', '51.9961', 6, 4,
            'Mn', 'Manganese', '54.938045', 7, 4,
            'Fe', 'Iron', '55.845', 8, 4,
            'Co', 'Cobalt', '58.933195', 9, 4,
            'Ni', 'Nickel', '58.6934', 10, 4,
            'Cu', 'Copper', '63.546', 11, 4,
            'Zn', 'Zinc', '65.38', 12, 4,
            'Ga', 'Gallium', '69.723', 13, 4,
            'Ge', 'Germanium', '72.63', 14, 4,
            'As', 'Arsenic', '74.9216', 15, 4,
            'Se', 'Selenium', '78.96', 16, 4,
            'Br', 'Bromine', '79.904', 17, 4,
            'Kr', 'Krypton', '83.798', 18, 4,
            'Rb', 'Rubidium', '85.4678', 1, 5,
            'Sr', 'Strontium', '87.62', 2, 5,
            'Y', 'Yttrium', '88.90585', 3, 5,
            'Zr', 'Zirconium', '91.224', 4, 5,
            'Nb', 'Niobium', '92.90628', 5, 5,
            'Mo', 'Molybdenum', '95.96', 6, 5,
            'Tc', 'Technetium', '(98)', 7, 5,
            'Ru', 'Ruthenium', '101.07', 8, 5,
            'Rh', 'Rhodium', '102.9055', 9, 5,
            'Pd', 'Palladium', '106.42', 10, 5,
            'Ag', 'Silver', '107.8682', 11, 5,
            'Cd', 'Cadmium', '112.411', 12, 5,
            'In', 'Indium', '114.818', 13, 5,
            'Sn', 'Tin', '118.71', 14, 5,
            'Sb', 'Antimony', '121.76', 15, 5,
            'Te', 'Tellurium', '127.6', 16, 5,
            'I', 'Iodine', '126.90447', 17, 5,
            'Xe', 'Xenon', '131.293', 18, 5,
            'Cs', 'Caesium', '132.9054', 1, 6,
            'Ba', 'Barium', '132.9054', 2, 6,
            'La', 'Lanthanum', '138.90547', 4, 9,
            'Ce', 'Cerium', '140.116', 5, 9,
            'Pr', 'Praseodymium', '140.90765', 6, 9,
            'Nd', 'Neodymium', '144.242', 7, 9,
            'Pm', 'Promethium', '(145)', 8, 9,
            'Sm', 'Samarium', '150.36', 9, 9,
            'Eu', 'Europium', '151.964', 10, 9,
            'Gd', 'Gadolinium', '157.25', 11, 9,
            'Tb', 'Terbium', '158.92535', 12, 9,
            'Dy', 'Dysprosium', '162.5', 13, 9,
            'Ho', 'Holmium', '164.93032', 14, 9,
            'Er', 'Erbium', '167.259', 15, 9,
            'Tm', 'Thulium', '168.93421', 16, 9,
            'Yb', 'Ytterbium', '173.054', 17, 9,
            'Lu', 'Lutetium', '174.9668', 18, 9,
            'Hf', 'Hafnium', '178.49', 4, 6,
            'Ta', 'Tantalum', '180.94788', 5, 6,
            'W', 'Tungsten', '183.84', 6, 6,
            'Re', 'Rhenium', '186.207', 7, 6,
            'Os', 'Osmium', '190.23', 8, 6,
            'Ir', 'Iridium', '192.217', 9, 6,
            'Pt', 'Platinum', '195.084', 10, 6,
            'Au', 'Gold', '196.966569', 11, 6,
            'Hg', 'Mercury', '200.59', 12, 6,
            'Tl', 'Thallium', '204.3833', 13, 6,
            'Pb', 'Lead', '207.2', 14, 6,
            'Bi', 'Bismuth', '208.9804', 15, 6,
            'Po', 'Polonium', '(209)', 16, 6,
            'At', 'Astatine', '(210)', 17, 6,
            'Rn', 'Radon', '(222)', 18, 6,
            'Fr', 'Francium', '(223)', 1, 7,
            'Ra', 'Radium', '(226)', 2, 7,
            'Ac', 'Actinium', '(227)', 4, 10,
            'Th', 'Thorium', '232.03806', 5, 10,
            'Pa', 'Protactinium', '231.0588', 6, 10,
            'U', 'Uranium', '238.02891', 7, 10,
            'Np', 'Neptunium', '(237)', 8, 10,
            'Pu', 'Plutonium', '(244)', 9, 10,
            'Am', 'Americium', '(243)', 10, 10,
            'Cm', 'Curium', '(247)', 11, 10,
            'Bk', 'Berkelium', '(247)', 12, 10,
            'Cf', 'Californium', '(251)', 13, 10,
            'Es', 'Einstenium', '(252)', 14, 10,
            'Fm', 'Fermium', '(257)', 15, 10,
            'Md', 'Mendelevium', '(258)', 16, 10,
            'No', 'Nobelium', '(259)', 17, 10,
            'Lr', 'Lawrencium', '(262)', 18, 10,
            'Rf', 'Rutherfordium', '(267)', 4, 7,
            'Db', 'Dubnium', '(268)', 5, 7,
            'Sg', 'Seaborgium', '(271)', 6, 7,
            'Bh', 'Bohrium', '(272)', 7, 7,
            'Hs', 'Hassium', '(270)', 8, 7,
            'Mt', 'Meitnerium', '(276)', 9, 7,
            'Ds', 'Darmstadium', '(281)', 10, 7,
            'Rg', 'Roentgenium', '(280)', 11, 7,
            'Cn', 'Copernicium', '(285)', 12, 7,
            'Nh', 'Nihonium', '(286)', 13, 7,
            'Fl', 'Flerovium', '(289)', 14, 7,
            'Mc', 'Moscovium', '(290)', 15, 7,
            'Lv', 'Livermorium', '(293)', 16, 7,
            'Ts', 'Tennessine', '(294)', 17, 7,
            'Og', 'Oganesson', '(294)', 18, 7
        ];
        
        
        const objects = [];
        const targets = { table: [], sphere: [], helix: [], grid: [] };
        
        init();
        
        function init() {
            document.body.appendChild(vjmap3d.DOM.createStyledDiv(`<div id="menu">
            <button id="table">TABLE</button>
            <button id="sphere">SPHERE</button>
            <button id="helix">HELIX</button>
            <button id="grid">GRID</button>
        </div>
            `, `
            a {
                color: #8ff;
            }
        
            #menu {
                position: absolute;
                bottom: 20px;
                width: 100%;
                text-align: center;
            }
        
            .element {
                width: 120px;
                height: 160px;
                box-shadow: 0px 0px 12px rgba(0,255,255,0.5);
                border: 1px solid rgba(127,255,255,0.25);
                font-family: Helvetica, sans-serif;
                text-align: center;
                line-height: normal;
                cursor: default;
            }
        
            .element:hover {
                box-shadow: 0px 0px 12px rgba(0,255,255,0.75);
                border: 1px solid rgba(127,255,255,0.75);
            }
        
                .element .number {
                    position: absolute;
                    top: 20px;
                    right: 20px;
                    font-size: 12px;
                    color: rgba(127,255,255,0.75);
                }
        
                .element .symbol {
                    position: absolute;
                    top: 40px;
                    left: 0px;
                    right: 0px;
                    font-size: 60px;
                    font-weight: bold;
                    color: rgba(255,255,255,0.75);
                    text-shadow: 0 0 10px rgba(0,255,255,0.95);
                }
        
                .element .details {
                    position: absolute;
                    bottom: 15px;
                    left: 0px;
                    right: 0px;
                    font-size: 12px;
                    color: rgba(127,255,255,0.75);
                }
        
            button {
                color: rgba(127,255,255,0.75);
                background: transparent;
                outline: 1px solid rgba(127,255,255,0.75);
                border: 0px;
                padding: 5px 10px;
                cursor: pointer;
            }
        
            button:hover {
                background-color: rgba(0,255,255,0.5);
            }
        
            button:active {
                color: #000000;
                background-color: rgba(0,255,255,0.75);
            }
            `))
        
            // table
        
            for ( let i = 0; i < table.length; i += 5 ) {
        
                const element = document.createElement( 'div' );
                element.className = 'element';
                element.style.backgroundColor = 'rgba(0,127,127,' + ( Math.random() * 0.5 + 0.25 ) + ')';
        
                const number = document.createElement( 'div' );
                number.className = 'number';
                number.textContent = ( i / 5 ) + 1;
                element.appendChild( number );
        
                const symbol = document.createElement( 'div' );
                symbol.className = 'symbol';
                symbol.textContent = table[ i ];
                element.appendChild( symbol );
        
                const details = document.createElement( 'div' );
                details.className = 'details';
                details.innerHTML = table[ i + 1 ] + '<br>' + table[ i + 2 ];
                element.appendChild( details );
        
                const objectCSS = new CSS3DObject( element );
                objectCSS.position.x = Math.random() * 4000 - 2000;
                objectCSS.position.y = Math.random() * 4000 - 2000;
                objectCSS.position.z = Math.random() * 4000 - 2000;
                scene.add( objectCSS );
        
                objects.push( objectCSS );
        
                //
        
                const object = new THREE.Object3D();
                object.position.x = ( table[ i + 3 ] * 140 ) - 1330;
                object.position.y = - ( table[ i + 4 ] * 180 ) + 990;
        
                targets.table.push( object );
        
            }
        
            // sphere
        
            const vector = new THREE.Vector3();
        
            for ( let i = 0, l = objects.length; i < l; i ++ ) {
        
                const phi = Math.acos( - 1 + ( 2 * i ) / l );
                const theta = Math.sqrt( l * Math.PI ) * phi;
        
                const object = new THREE.Object3D();
        
                object.position.setFromSphericalCoords( 800, phi, theta );
        
                vector.copy( object.position ).multiplyScalar( 2 );
        
                object.lookAt( vector );
        
                targets.sphere.push( object );
        
            }
        
            // helix
        
            for ( let i = 0, l = objects.length; i < l; i ++ ) {
        
                const theta = i * 0.175 + Math.PI;
                const y = - ( i * 8 ) + 450;
        
                const object = new THREE.Object3D();
        
                object.position.setFromCylindricalCoords( 900, theta, y );
        
                vector.x = object.position.x * 2;
                vector.y = object.position.y;
                vector.z = object.position.z * 2;
        
                object.lookAt( vector );
        
                targets.helix.push( object );
        
            }
        
            // grid
        
            for ( let i = 0; i < objects.length; i ++ ) {
        
                const object = new THREE.Object3D();
        
                object.position.x = ( ( i % 5 ) * 400 ) - 800;
                object.position.y = ( - ( Math.floor( i / 5 ) % 5 ) * 400 ) + 800;
                object.position.z = ( Math.floor( i / 25 ) ) * 1000 - 2000;
        
                targets.grid.push( object );
        
            }
        
            //
        
            renderercss3d = new CSS3DRenderer();
            renderercss3d.setSize( app.containerSize.width, app.containerSize.height );
            app.container.appendChild( renderercss3d.domElement );
        
            //
        
        
            const buttonTable = document.getElementById( 'table' );
            buttonTable.addEventListener( 'click', function () {
        
                transform( targets.table, 2000 );
        
            } );
        
            const buttonSphere = document.getElementById( 'sphere' );
            buttonSphere.addEventListener( 'click', function () {
        
                transform( targets.sphere, 2000 );
        
            } );
        
            const buttonHelix = document.getElementById( 'helix' );
            buttonHelix.addEventListener( 'click', function () {
        
                transform( targets.helix, 2000 );
        
            } );
        
            const buttonGrid = document.getElementById( 'grid' );
            buttonGrid.addEventListener( 'click', function () {
        
                transform( targets.grid, 2000 );
        
            } );
        
            transform( targets.table, 2000 );
        
            //
            app.signal.onAppRender.add(() => TWEEN.update())
            app.signal.onAppAfterRender.add(() => {
                renderercss3d.render(scene, camera)
            })
        }
        
        function transform( targets, duration ) {
        
            TWEEN.removeAll();
        
            for ( let i = 0; i < objects.length; i ++ ) {
        
                const object = objects[ i ];
                const target = targets[ i ];
        
                new TWEEN.Tween( object.position )
                    .to( { x: target.position.x, y: target.position.y, z: target.position.z }, Math.random() * duration + duration )
                    .easing( TWEEN.Easing.Exponential.InOut )
                    .start();
        
                new TWEEN.Tween( object.rotation )
                    .to( { x: target.rotation.x, y: target.rotation.y, z: target.rotation.z }, Math.random() * duration + duration )
                    .easing( TWEEN.Easing.Exponential.InOut )
                    .start();
        
            }
        
            new TWEEN.Tween( this )
                .to( {}, duration * 2 )
                .start();
        
        }
        
    }
    catch (e) {
        console.error(e);
    }
};